import React from "react";
import GrandSon from "./grandson.jsx";
// 子组件
const Sister = (props) => {

  return(
    <div>
        <h1>sister</h1>
        <GrandSon></GrandSon>
        <button onClick={()=>props.SisterToFather(3)}> 点</button>
    </div>
  )
}
export default Sister